<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<div style="color: rgb(0, 0, 0); font-size: 12pt; font-family: Calibri, Arial, Helvetica, sans-serif;">
Dear All:</div>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Well, a week is not complete without churning out a A1n/d2n Newsletter, so here we are:</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
Previously I have compared running an experiment to running a road race, though strictly speaking it is not any race: It is a prestigious race like the Boston or the New York Marathon (we did have to work hard to be approved by the PAC). Now, as many of you
have probably realized: our runners -- Brianna and Dutch -- have found their race condition not as ideal as they hoped. They have faced strong wind (extended down), pouring rain (high trip rate), a snow storm (ESR crash), and competition with other friendly
runners (A, B and C taking turns to get their fill of 1-pass beam). However, like I said last time:
<u>This is it! we have to finish the race and we have to finish strong! And so they pressed on</u>.</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
<br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
What I did not mention is that Dutch, one of our best runners, had one ill-fitting shoe (its longitudinal polarization was never as high as the transverse one). Because the cost of fixing the shoe was high, Dutch never stopped at an aid station. Rather it limped
and hopped and at some point almost crawled, and finished bravely its section of the relay. When we took it out ten days ago, fully covered by salt dust, it could finally rest at its retirement home (the hall) but at the same time, we knew it had not been
run to its full potential.</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
<br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
Now here are the good news: <b>The ill-fitting shoe was finally fixed</b> and BigBrother does not need to limp like Dutch did! What a great relief we all felt! Since this past Monday, BigBrother has been running with a consistent (54-55)%
<u><i>longitudinal</i></u> polarization under 30uA beam, pushing our kin3/C production with flying speed. An elite runner is finally flying!<br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
<br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
I was always told the legend that "cell Picard saved E154". Looking at the target polarization plot (below), I never fully understood, until now, how can one of nine cells saved a whole experiment. But now I do: Because of the I*Pt^2 factor in the FOM, every
10% increase in the target polarization is like gaining 20% in beam time. And every running day of BigBrother is like 1.6 or even two days of Dutch!<br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
<br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
To those of you helping out on the shifts (Run Coordinators included): You are not simply sitting shifts.
<b>You are the caretaker of our best cells, and you are the caretaker of the experiment</b>.<i>
<b>Every single task you do</b>, </i>whether it is an NMR measurement, starting/stopping the run, glancing over online monitoring and analysis plots, or staring at the BPM charts, and most importantly carrying out the beam checkout procedure,
<b><i>you are helping us to ensure a successful running of the experiment</i></b>.
<span style="color: rgb(200, 38, 19); background-color: rgb(255, 255, 0);"><b>Please, sign up for more shifts, come see BigBrother flying!</b></span><br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
<br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
Sincerely,</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
<br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
call me odd if you wish, I am still one spokesperson of A1n<br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
<br>
</div>
<div style="color:black; font-size:12pt; font-family:Calibri,Arial,Helvetica,sans-serif">
Xiaochao</div>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div><img size="26967" contenttype="image/png" style="max-width: 100%; user-select: none;" unselectable="on" tabindex="-1" data-outlook-trace="F:1|T:1" src="cid:a88a741c-8c42-4439-9f65-04ba52247224"></div>
<div>(Figure credit: Mike Romalis Ph.D. thesis. Cells used: Dave, Riker, Bob, SMC, Generals, Hermes, Prelims, Chance, and Picard)<br>
</div>
</body>
</html>