E-rhic-ir-l mailing list

["Montag, Christoph" <montagc AT bnl.gov>]

Hi Elke,

Making an educated guess (which I am enjoying right now), this is the high divergence with cooling. That would be consistent with the label on the tab, and also with the luminosity numbers.

Enjoy the weekend,

Christoph

---

From: Aschenauer Elke-Caroline <elke AT bnl.gov>
Sent: Saturday, May 4, 2019 9:50 PM
To: Wu, Qiong
Cc: Aschenauer, Elke; Willeke, Ferdinand; Hatton, Diane; Blaskiewicz, Michael M; Ranjbar, Vahid; Montag, Christoph; Ptitsyn, Vadim; McIntyre, Gary T; Tuozzolo, Joseph E; Folz, Charles; Fischer, Wolfram; Wang, Erdong; Skaritka, John; Huang, Haixin; Luo, Yun; e-rhic-ir-l AT lists.bnl.gov; Smith, Kevin S
Subject: Re: [E-rhic-ir-l] frequency change request

 

Dear Qiong and Vadim,

I have quick question, the parameter table is for which configuration, assuming strong hadron cooling or not and for the high acceptance or the high divergence case. Just to be sure with which pre-CDR setting I shoudl compare.

Thanks a lot

elke

On May 3, 2019, at 16:44, Wu, Qiong <qiowu AT bnl.gov> wrote:

Dear all,

 

Please find the DCC proposal for the frequency change (harmonic 360 changed to 315) along with the latest parameter table from Vadim (see the frequency in Kevin’s proposal).

 

This change is not only limited in the frequency of the RF cavities, but also the fill pattern and charge per bunch and beyond. Please take a serious consideration of this through the area you’re in charge of for anything that might be impacted.

 

Any alalysis towards validating this change should be documented into a memo, and we’re open to any format you want to submit as supplement material for this request.

 

Please send these to anyone that should be involved.

 

Please refer to Kevin Smith (cc’ed in this email) or me for any questions you have.

 

Have a nice weekend,

Qiong

 

 

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