[PRad] event rate and radiation dose in the first open crystals

[gasparan]

  Thanks Mingyu,

  Good results. It looks like we still have about factor of two advantage 
for the larger
  absorber when we use the same beam current.
  At this time we need the geometrical acceptances simulated using the 
"heavy photon" model
  (Madgraph5) and regular flat energy spectrum for X17 (like in the 
proposal).

  Ashot


On 2025-06-09 13:22, limy wrote:
> Dear Ashot,
> 
> 
> I have calculated the event rate (E>10 MeV) and radiation dose in the
> first open crystals for both versions. The relevant results  and plots
> are included in the attached slides.
> 
> Mingyu
> 
> 
> 在 2025-06-07 23:02，gasparan 写道：
>> Hi Mingyu,
>> 
>>  Thanks for these fast simulations, there are a lot of information in
>> these plots.
>>  Here is a more specific question: what is the rate (with E>10 MeV)
>> and Rad dose in the
>>  FIRST open crystal(s) for both versions that we are simulating (see
>> below to check them again).
>>  Thanks,
>>  Ashot
>> 
>> On 2025-06-07 08:38, limy wrote:
>>> Dear Ashot,
>>> 
>>> 
>>> I have reorganized my images. I’ve attached two PDF files containing
>>> the summary images for these two configurations.
>>> 
>>> 
>>> Mingyu
>>> 
>>> 
>>> 在 2025-06-07 02:10，gasparan 写道：
>>>> Dear Mingyu,
>>>> 
>>>>  Thanks for provided information about the new simulations. I was
>>>> trying to navigate through
>>>>  and get some quantitative comparisons but they are so small and too
>>>> many to easily find the numbers.
>>>>  I would suggest that you put each graph on each page (or slide) and
>>>> send us (for me, especially)
>>>>  two plots for 2.2 GeV for now: (a) radiation level with 1 
>>>> micrometer
>>>> target with with 50 nA and with
>>>>  the larger absorber; and
>>>>  (b) the same with 0.5 micrometer target with 50 nA with the old
>>>> (PRad) absorber.
>>>>  Also, would be much easier if you make your comments and summary 
>>>> note.
>>>>  Thanks for your good work,
>>>>  Ashot
>>>> 
>>>> On 2025-06-06 03:24, limy via PRad wrote:
>>>>> Dear all,
>>>>> 
>>>>> 
>>>>> This is a summary of X17 under different conditions. I've attached 
>>>>> the
>>>>> summary slides.
>>>>> 
>>>>> Mingyu
>>>>> 
>>>>> 
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>>>>>>    1. [EXTERNAL] Simulation meeting Tuesday night at 8PM, June 3rd
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>>>>>> ----------------------------------------------------------------------
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>>>>>> Message: 1
>>>>>> Date: Mon, 2 Jun 2025 14:23:43 +0000
>>>>>> From: Weizhi Xiong <weizhi.xiong at duke.edu>
>>>>>> To: prad <prad at jlab.org>
>>>>>> Subject: [PRad] [EXTERNAL] Simulation meeting Tuesday night at 
>>>>>> 8PM,
>>>>>> 	June 3rd
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